Adjustable map-rack.



C. H. WALKER.

ADJUSTABLE MAP RACK.

APPLICATION FILED maze. I917.

1,25 1, 145. Patented Dec. 25, 1917.

E w 2/ 5 /0 f; m 2r v i EST-76)"?- UNITED STATES PATENT orrioE.

CURTIS H. WALKER, OFCHICAGO, ILLINOIS. I

ADJUSTABLE MAP-Rack.

To all whom it may concern: I

Be it known that I, CURTIS H. WALKER, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a new and useful'Improvement in Adjustable Map-Racks; and I dohereby declare the following, when taken in connection with theaccompanying drawings and the characters of reference,

marked thereon, to be a full, clear, and' exact description of the same,and which said drawings constitute part of this application, andrepresent, in

Figure 1 a view in front elevation of one form which a map-rackconstructed in accordance with my invention may assume, showing theapplication to it of three maps.

Fig. 2 a view in elevation of the rackframe from which the slidingbracketblocks have been removed.

Fig. 3 a detail sectional perspective view on the line 33 of Fig. 1.

Fig. 4 a view in horizontal section on the line 4-4 of Fig. 1.

Fig. 5 a view in vertical section on the line 55 of Fig. 1.

My invention relates to an improvement in map-racks, the object being toprovide a simple and convenient map-rack designed and constructed withparticular reference to accommodating maps of varying width.

With these ends in view, my invention consists in a map-rack havingfixed maproller brackets applied to its ends, and intermediateadjustable map-roller brackets for cooperation therewith.

My invention further consists in certain details of construction as willbe hereinafter described and pointed out in the claims.

In carrying out my invention as herein shown, I employ a rectangularrack-frame 6 provided at its respective ends and upon its front face,with vertically arranged cleats 7 to which map-roller brackets 8 areapplied in vertical series, these brackets being provided withperforations 9 for the reception of trunnions 10 at the ends of therollers 11 of the maps 12.

To adapt my improved map-rack to accommodate maps shorter than the fulldistance between the complementary brackets 8 at the opposite ends ofthe rack-frame, I provide the frame with sliding bracketblocks 13 each.carrying two map-roller brackets 14, 15, having slots 16 at its re-Speciiieation of Letters Patent.

" spective ends. For 'mounting the blocks 13 slidably with respect tothe frame, the same is formed with a series'of horizontal slots 17located oneabove the other in line with the complementary. pairs ofbrackets, there being as many bracket-blocks13 and slots 17 "as thereareCOmPlGIIIQIIfMyjJZtiIS of brackets. The said slotsl]. are Trshaped 'ineross sec'tio'n for the reception of the heads of the bolts 19 by meansof which the blocks 13 are slidably mounted upon the frame 6, the saidbolts extending forwardly through the slots 17 and through the blocks 13and having their projecting ends threaded for the reception of wing-nuts20 under which are placed washers 21 bearing directly upon the outerfaces of the blocks 13. Pins 22 mounted in the respective ends of theblocks 13, enter the slots 17 and prevent the blocks 13 from canting byturning on the bolts 19. By loosening its wing-nut 20 any one of theblocks 13 may be moved to the left or to the right, according as it isdesired to position its slotted left hand bracket 14 with respect to thecomplementary left hand perforated bracket 8 of the complementary pairof brackets between which the block is located, or to the right toposition the right hand slotted bracket 15 with respect to the righthand perforated bracket 8 of the same pair. The moving of thebracket-block, as above described, to the right or left is determined bythe desired location of the map upon the i Patented Dec; 25, 1917.Application filed February 26, 1917. Serial no. 150,952} I i Thecapacity of my improved map-rack may be increased or decreased byincreasing or decreasing the height and length of the frame 6 andcorrespondingly increasing or decreasing the number of map-rollerbrackets.

I claim 2-- 1. In a map-rack, the combination wit the frame thereof, ofcomplementary pairs of map-roller brackets fixed to the ends of the saidframe, and adjustable map-roller complementary pairs on the frame.

2. In a map-rack, thecombination with' the frame thereof, ofcomplementary pairs of map-roller brackets fixed to-the endsslidingbracket-blocks applied to the frame so asto thereof, longitudinallymovable be adjusted in eitherdirection line with the complementaryairsofbrackets'; anda pair of map-rollerbrackets applied to eachof'thesaidblocksl I 3.} In' a map-rack, the combination with aframefornied with iongitudinal slots ar ranged one above the other, ofcomplemenmy. pairs of map-roller brackets applied to the ends of theSaid frame in line? with the the said slots, and map-roller bracketscarried byth e said blocks which are adjusted in either direction forpositionmg their map"-roller-brackets with respect toithe fixedmap-roller brackets upon the frame.

In testimony whereof, I have signed this specification in the scribingwitnesses;

CURTIS: WALKER".

Witnesses: I

OBBA W; M; PERKINS;

presence of two sub

